ux.nuのnode.js用モジュール

how_to_use.js

var ux_nu = require('./ux_nu');

//短縮(Shorten)
ux_nu.shorten('http://www.gehirn.co.jp/', function (err, url, obj) {
  console.log(url);
});

//元に戻す(Expand)
ux_nu.expand('http://ux.nu/Gehirn', function (err, url, obj) {
  console.log(url);
});

ux_nu.js

var http = require('http');

function request (path, callback) {
  var client = http.createClient(80, 'ux.nu');
  var request = client.request('GET', path, {host: 'ux.nu'});
  request.end();
  request.on('response', function (response) {
    var buffer = String();
    response.setEncoding('utf8');
    response.on('data', function (chunk) {
      buffer += chunk;
    });
    response.on('end', function () {
      try {
        var parsed = JSON.parse(buffer);
        callback(null, parsed);
      } catch (e) {
        callback(e, buffer);
      }
    });
  });
}

module.exports.shorten = function (url, callback) {
  var apiUrl = '/api/short?format=json&url=' + url;
  request(apiUrl, function (err, result) {
    var shortenedUrl = null;
    if (!err) {
      shortenedUrl = result.data.url;
    }
    callback(err, shortenedUrl, result);
  });
}

module.exports.expand = function (url, callback) {
  var apiUrl = '/hugeurl?format=json&url=' + url;
  request(apiUrl, function (err, result) {
    var expandedUrl = null;
    if (!err) {
      expandedUrl = result.exp;
    }
    callback(err, expandedUrl, result);
  });
}